Confederal entities of Bosnia and Herzegovina
The confederal entities of Bosnia and Herzegovina – the Federation of Bosnia and Herzegovina (FBiH) and Republika Srpska (RS) – were created by the Dayton Agreement in December 1995. The condominium of the two entities, the Brčko District, was established in 1999.
Source: Wikipedia — Confederal entities of Bosnia and Herzegovina (CC BY-SA 4.0)